Finding the Fourth Proportional to 83,891.36, 125,810.34 and 27,720.98
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Solution
The fourth proportional to 83,891.36, 125,810.34 and 27,720.98 is: 41,572.65
Step by Step Solution
- Step 1: Write the proportion equation
83,891.36 : 125,810.34 = 27,720.98 : x - Step 2: Convert to fraction form
83,891.36/125,810.34 = 27,720.98/x - Step 3: Cross multiply
83,891.36x = 125,810.34 × 27,720.98 - Step 4: Simplify right side
83,891.36x = 3,487,585,918.93 - Step 5: Solve for x
x = 3,487,585,918.93/83,891.36 - Step 6: Final answer
x = 41,572.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.